MESON Chess Problem Database

Problem Display
PID: 173713 (5bN1/3B2p1/2Pp1PP1/3k4/Nprr1Q1K/2p1R3/4nn2/1b1R4 w - - 0 1)

Boros, Sandor

Uj Nemezdek, 1926

5bN1/3B2p1/2Pp1PP1/3k4/Nprr1Q1K/2p1R3/4nn2/1b1R4

#2

10 + 11

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Sb6#
    • 1...Rxc6
      • 2.Be6#
    • 1...Be7
      • 2.Sxe7#
    • 1...Se4
      • 2.Qf5#
    • 1...gxf6
      • 2.Sxf6#
  • Keys
    • 1.fxg7!
      • threat
        • 2.Sf6#
      • 1...Be7+
        • 2.Sxe7#
      • 1...Rxc6
        • 2.Be6#
      • 1...Bxg7
        • 2.Se7#
      • 1...Rc5
        • 2.Sb6#
      • 1...Se4
        • 2.Qf5#
      • 1...Sg4
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • R(f);SBLOCK::S(C)
    • R(f);SBLOCK,XP(F)::B(I)
    • B(k);N_GUARD,P_PINP(G)::S(J),XB(k)
    • S(c);N_PINQ(D)::QAR2(D)
    • P(j);XP(G)::S(J),XP(j)
  • Actual
    • P(G);XP(j)
    • Threat
      • S(J)
    • Vars
      • B(k);CHECK,N_GUARD::S(J),XB(k)
      • R(f);SBLOCK,XP(F)::B(I)
      • B(k);N_GUARD,XP(G)::S(J)
      • R(f);SBLOCK::S(C)
      • S(c);N_PINQ(D)::QAR2(D)
      • S(c);N_PINQ(D)::QAB(D)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).